
sedimentary
Sandstone
Clastic sedimentary rock (quartz arenite)
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale. Colors range from red, brown, yellow, to grey depending on mineral impurities. Dull to earthy luster with a clastic or sandy texture.
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Physical properties
Hardness of 6-7 on the Mohs scale. Colors range from red, brown, yellow, to grey depending on mineral impurities. Dull to earthy luster with a clastic or sandy texture.
Formation & geological history
Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, mostly quartz and feldspar, in desert, river, or marine environments over millions of years.
Uses & applications
Commonly used in construction as building stone, paving material, and in the manufacturing of glass and abrasives.
Geological facts
Many of the world's tallest and most famous monuments and historical buildings, including Petra, are carved directly from sandstone cliffs.
Field identification & locations
Easily identifiable in the field by its distinct visible sand-sized grains and gritty texture. Found worldwide in sedimentary basins and desert regions.
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Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
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Sandstone
Arenite
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Shale
Shale (clastic sedimentary rock)
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Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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